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(11)

EP 1 769 331 A1

(12)

(43) Date of publication: 04.04.2007 Bulletin 2007/14 (21) Application number: 05760161.9 (22) Date of filing: 08.07.2005

(51) International Patent Classification (IPC):  G06F 3/06(2006.01) G11C 16/20(2006.01) (86) International application number: PCT/JP2005/013104 (87) International publication number: WO 2006/006694 (19.01.2006 Gazette 2006/03)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 12.07.2004 JP 2004204028 26.11.2004 JP 2004342275 (71) Applicant: KABUSHIKI KAISHA TOSHIBA Tokyo 105-8001 (JP)	(72) Inventor: FUJIMOTO, Akihisa Tokyo 105-8001 (JP) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)